Issue 51

M. S. Bennouna et alii, Frattura ed Integrità Strutturale, 51 (2020) 254-266; DOI: 10.3221/IGF-ESIS.51.20 254 Numerical investigation of the effect of constrained groove pressing process on the mechanical properties of polyamide PA66 Mohammed Salah Bennouna University of Kasdi Merbah ouargla, Algeria Bennouna_ms@yahoo.fr , http://orcid.org/ 0000-0002-3694-9993 Sadek Kaddour, Aour Benaoumeur Labab Laboratory, ENPOran, Algeria sadekkaddour@gmail.com, ben_aour@yahoo.fr Damba Nadir University of Adrar, Algeria Boudjmaa.damba@yahoo.fr A BSTRACT . This research is a numerical study of the effect of the constrained groove pressing (CGP) process and its impact on a thermoplastic polymer (polyamide PA 66). A simulation is performed using a finite element tool. The effect of the process conditions and the tool geometry on the mechanical properties is noted. The results are significant, the equivalent strain and Von Mises stress have been progressed accordingly to the number of cycles and the tool geometry. Concluding remarks on the alteration of the microstructure have been proclaimed at the end of this paper. K EYWORDS . FEA method; Polymer; Stress; Strain; CGP; SPD. Citation: Bennouna, M. S., Kaddur, S., Aour, B., Damba, N.,. Numerical investigation of the effect of constrained groove pressing process on the mechanical properties of polyamide PA66, Frattura ed Integrità Strutturale, 51 (2020) 254-266. Received: 30.08.2019 Accepted: 26.11.2019 Published: 01.01.2020 Copyright: © 2020 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. I NTRODUCTION any research works have been carried out on Several Super Plastic Deformation (SPD) processes to introduce a large plastic deformation into bulk materials to give them an ultra-fine grained structure. These processes are used in the industry as metal forming processes but in this work we are using one of these processes (CGP) on polymeric materials to improved mechanical and physical properties which destine them for a wide commercial use such as biomechanical materials. M